/*
 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
 * Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com>
 * Copyright (c) 2008 Red Hat Inc.
 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
 * Copyright (c) 2007-2008 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#ifndef _DRM_MODE_H
#define _DRM_MODE_H

#include <libs/klibc.h>

typedef size_t __kernel_size_t;
typedef uint8_t __u8;
typedef uint16_t __u16;
typedef int32_t __s32;
typedef uint32_t __u32;
typedef int64_t __s64;
typedef uint64_t __u64;

#if defined(__cplusplus)
extern "C"
{
#endif

#define DRM_CONNECTOR_NAME_LEN 32
#define DRM_DISPLAY_MODE_LEN 32
#define DRM_PROP_NAME_LEN 32

#define DRM_MODE_TYPE_BUILTIN (1 << 0)                           /* deprecated */
#define DRM_MODE_TYPE_CLOCK_C ((1 << 1) | DRM_MODE_TYPE_BUILTIN) /* deprecated */
#define DRM_MODE_TYPE_CRTC_C ((1 << 2) | DRM_MODE_TYPE_BUILTIN)  /* deprecated */
#define DRM_MODE_TYPE_PREFERRED (1 << 3)
#define DRM_MODE_TYPE_DEFAULT (1 << 4) /* deprecated */
#define DRM_MODE_TYPE_USERDEF (1 << 5)
#define DRM_MODE_TYPE_DRIVER (1 << 6)

#define DRM_MODE_TYPE_ALL (DRM_MODE_TYPE_PREFERRED | \
                           DRM_MODE_TYPE_USERDEF |   \
                           DRM_MODE_TYPE_DRIVER)

/* Video mode flags */
/* bit compatible with the xrandr RR_ definitions (bits 0-13)
 *
 * ABI warning: Existing userspace really expects
 * the mode flags to match the xrandr definitions. Any
 * changes that don't match the xrandr definitions will
 * likely need a new client cap or some other mechanism
 * to avoid breaking existing userspace. This includes
 * allocating new flags in the previously unused bits!
 */
#define DRM_MODE_FLAG_PHSYNC (1 << 0)
#define DRM_MODE_FLAG_NHSYNC (1 << 1)
#define DRM_MODE_FLAG_PVSYNC (1 << 2)
#define DRM_MODE_FLAG_NVSYNC (1 << 3)
#define DRM_MODE_FLAG_INTERLACE (1 << 4)
#define DRM_MODE_FLAG_DBLSCAN (1 << 5)
#define DRM_MODE_FLAG_CSYNC (1 << 6)
#define DRM_MODE_FLAG_PCSYNC (1 << 7)
#define DRM_MODE_FLAG_NCSYNC (1 << 8)
#define DRM_MODE_FLAG_HSKEW (1 << 9)   /* hskew provided */
#define DRM_MODE_FLAG_BCAST (1 << 10)  /* deprecated */
#define DRM_MODE_FLAG_PIXMUX (1 << 11) /* deprecated */
#define DRM_MODE_FLAG_DBLCLK (1 << 12)
#define DRM_MODE_FLAG_CLKDIV2 (1 << 13)
    /*
     * When adding a new stereo mode don't forget to adjust DRM_MODE_FLAGS_3D_MAX
     * (define not exposed to user space).
     */
#define DRM_MODE_FLAG_3D_MASK (0x1f << 14)
#define DRM_MODE_FLAG_3D_NONE (0 << 14)
#define DRM_MODE_FLAG_3D_FRAME_PACKING (1 << 14)
#define DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE (2 << 14)
#define DRM_MODE_FLAG_3D_LINE_ALTERNATIVE (3 << 14)
#define DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL (4 << 14)
#define DRM_MODE_FLAG_3D_L_DEPTH (5 << 14)
#define DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH (6 << 14)
#define DRM_MODE_FLAG_3D_TOP_AND_BOTTOM (7 << 14)
#define DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF (8 << 14)

/* Picture aspect ratio options */
#define DRM_MODE_PICTURE_ASPECT_NONE 0
#define DRM_MODE_PICTURE_ASPECT_4_3 1
#define DRM_MODE_PICTURE_ASPECT_16_9 2
#define DRM_MODE_PICTURE_ASPECT_64_27 3
#define DRM_MODE_PICTURE_ASPECT_256_135 4

/* Content type options */
#define DRM_MODE_CONTENT_TYPE_NO_DATA 0
#define DRM_MODE_CONTENT_TYPE_GRAPHICS 1
#define DRM_MODE_CONTENT_TYPE_PHOTO 2
#define DRM_MODE_CONTENT_TYPE_CINEMA 3
#define DRM_MODE_CONTENT_TYPE_GAME 4

/* Aspect ratio flag bitmask (4 bits 22:19) */
#define DRM_MODE_FLAG_PIC_AR_MASK (0x0F << 19)
#define DRM_MODE_FLAG_PIC_AR_NONE \
    (DRM_MODE_PICTURE_ASPECT_NONE << 19)
#define DRM_MODE_FLAG_PIC_AR_4_3 \
    (DRM_MODE_PICTURE_ASPECT_4_3 << 19)
#define DRM_MODE_FLAG_PIC_AR_16_9 \
    (DRM_MODE_PICTURE_ASPECT_16_9 << 19)
#define DRM_MODE_FLAG_PIC_AR_64_27 \
    (DRM_MODE_PICTURE_ASPECT_64_27 << 19)
#define DRM_MODE_FLAG_PIC_AR_256_135 \
    (DRM_MODE_PICTURE_ASPECT_256_135 << 19)

#define DRM_MODE_FLAG_ALL (DRM_MODE_FLAG_PHSYNC |    \
                           DRM_MODE_FLAG_NHSYNC |    \
                           DRM_MODE_FLAG_PVSYNC |    \
                           DRM_MODE_FLAG_NVSYNC |    \
                           DRM_MODE_FLAG_INTERLACE | \
                           DRM_MODE_FLAG_DBLSCAN |   \
                           DRM_MODE_FLAG_CSYNC |     \
                           DRM_MODE_FLAG_PCSYNC |    \
                           DRM_MODE_FLAG_NCSYNC |    \
                           DRM_MODE_FLAG_HSKEW |     \
                           DRM_MODE_FLAG_DBLCLK |    \
                           DRM_MODE_FLAG_CLKDIV2 |   \
                           DRM_MODE_FLAG_3D_MASK)

/* DPMS flags */
/* bit compatible with the xorg definitions. */
#define DRM_MODE_DPMS_ON 0
#define DRM_MODE_DPMS_STANDBY 1
#define DRM_MODE_DPMS_SUSPEND 2
#define DRM_MODE_DPMS_OFF 3

/* Scaling mode options */
#define DRM_MODE_SCALE_NONE 0       /* Unmodified timing (display or \
                           software can still scale) */
#define DRM_MODE_SCALE_FULLSCREEN 1 /* Full screen, ignore aspect */
#define DRM_MODE_SCALE_CENTER 2     /* Centered, no scaling */
#define DRM_MODE_SCALE_ASPECT 3     /* Full screen, preserve aspect */

/* Dithering mode options */
#define DRM_MODE_DITHERING_OFF 0
#define DRM_MODE_DITHERING_ON 1
#define DRM_MODE_DITHERING_AUTO 2

/* Dirty info options */
#define DRM_MODE_DIRTY_OFF 0
#define DRM_MODE_DIRTY_ON 1
#define DRM_MODE_DIRTY_ANNOTATE 2

/* Link Status options */
#define DRM_MODE_LINK_STATUS_GOOD 0
#define DRM_MODE_LINK_STATUS_BAD 1

/*
 * DRM_MODE_ROTATE_<degrees>
 *
 * Signals that a drm plane is been rotated <degrees> degrees in counter
 * clockwise direction.
 *
 * This define is provided as a convenience, looking up the property id
 * using the name->prop id lookup is the preferred method.
 */
#define DRM_MODE_ROTATE_0 (1 << 0)
#define DRM_MODE_ROTATE_90 (1 << 1)
#define DRM_MODE_ROTATE_180 (1 << 2)
#define DRM_MODE_ROTATE_270 (1 << 3)

/*
 * DRM_MODE_ROTATE_MASK
 *
 * Bitmask used to look for drm plane rotations.
 */
#define DRM_MODE_ROTATE_MASK ( \
    DRM_MODE_ROTATE_0 |        \
    DRM_MODE_ROTATE_90 |       \
    DRM_MODE_ROTATE_180 |      \
    DRM_MODE_ROTATE_270)

/*
 * DRM_MODE_REFLECT_<axis>
 *
 * Signals that the contents of a drm plane is reflected along the <axis> axis,
 * in the same way as mirroring.
 * See kerneldoc chapter "Plane Composition Properties" for more details.
 *
 * This define is provided as a convenience, looking up the property id
 * using the name->prop id lookup is the preferred method.
 */
#define DRM_MODE_REFLECT_X (1 << 4)
#define DRM_MODE_REFLECT_Y (1 << 5)

/*
 * DRM_MODE_REFLECT_MASK
 *
 * Bitmask used to look for drm plane reflections.
 */
#define DRM_MODE_REFLECT_MASK ( \
    DRM_MODE_REFLECT_X |        \
    DRM_MODE_REFLECT_Y)

/* Content Protection Flags */
#define DRM_MODE_CONTENT_PROTECTION_UNDESIRED 0
#define DRM_MODE_CONTENT_PROTECTION_DESIRED 1
#define DRM_MODE_CONTENT_PROTECTION_ENABLED 2

    struct drm_mode_modeinfo
    {
        __u32 clock;
        __u16 hdisplay;
        __u16 hsync_start;
        __u16 hsync_end;
        __u16 htotal;
        __u16 hskew;
        __u16 vdisplay;
        __u16 vsync_start;
        __u16 vsync_end;
        __u16 vtotal;
        __u16 vscan;

        __u32 vrefresh;

        __u32 flags;
        __u32 type;
        char name[DRM_DISPLAY_MODE_LEN];
    };

    struct drm_mode_card_res
    {
        __u64 fb_id_ptr;
        __u64 crtc_id_ptr;
        __u64 connector_id_ptr;
        __u64 encoder_id_ptr;
        __u32 count_fbs;
        __u32 count_crtcs;
        __u32 count_connectors;
        __u32 count_encoders;
        __u32 min_width;
        __u32 max_width;
        __u32 min_height;
        __u32 max_height;
    };

    struct drm_mode_modeinfo;

    struct drm_mode_crtc
    {
        __u64 set_connectors_ptr;
        __u32 count_connectors;

        __u32 crtc_id; /**< Id */
        __u32 fb_id;   /**< Id of framebuffer */

        __u32 x; /**< x Position on the framebuffer */
        __u32 y; /**< y Position on the framebuffer */

        __u32 gamma_size;
        __u32 mode_valid;
        struct drm_mode_modeinfo mode;
    };

#define DRM_MODE_PRESENT_TOP_FIELD (1 << 0)
#define DRM_MODE_PRESENT_BOTTOM_FIELD (1 << 1)

    /* Planes blend with or override other bits on the CRTC */
    struct drm_mode_set_plane
    {
        __u32 plane_id;
        __u32 crtc_id;
        __u32 fb_id; /* fb object contains surface format type */
        __u32 flags; /* see above flags */

        /* Signed dest location allows it to be partially off screen */
        __s32 crtc_x;
        __s32 crtc_y;
        __u32 crtc_w;
        __u32 crtc_h;

        /* Source values are 16.16 fixed point */
        __u32 src_x;
        __u32 src_y;
        __u32 src_h;
        __u32 src_w;
    };

    struct drm_mode_get_plane
    {
        __u32 plane_id;

        __u32 crtc_id;
        __u32 fb_id;

        __u32 possible_crtcs;
        __u32 gamma_size;

        __u32 count_format_types;
        __u64 format_type_ptr;
    };

    struct drm_mode_get_plane_res
    {
        __u64 plane_id_ptr;
        __u32 count_planes;
    };

#define DRM_MODE_ENCODER_NONE 0
#define DRM_MODE_ENCODER_DAC 1
#define DRM_MODE_ENCODER_TMDS 2
#define DRM_MODE_ENCODER_LVDS 3
#define DRM_MODE_ENCODER_TVDAC 4
#define DRM_MODE_ENCODER_VIRTUAL 5
#define DRM_MODE_ENCODER_DSI 6
#define DRM_MODE_ENCODER_DPMST 7
#define DRM_MODE_ENCODER_DPI 8

    struct drm_mode_get_encoder
    {
        __u32 encoder_id;
        __u32 encoder_type;

        __u32 crtc_id; /**< Id of crtc */

        __u32 possible_crtcs;
        __u32 possible_clones;
    };

    /* This is for connectors with multiple signal types. */
    /* Try to match DRM_MODE_CONNECTOR_X as closely as possible. */
    enum drm_mode_subconnector
    {
        DRM_MODE_SUBCONNECTOR_Automatic = 0,
        DRM_MODE_SUBCONNECTOR_Unknown = 0,
        DRM_MODE_SUBCONNECTOR_DVID = 3,
        DRM_MODE_SUBCONNECTOR_DVIA = 4,
        DRM_MODE_SUBCONNECTOR_Composite = 5,
        DRM_MODE_SUBCONNECTOR_SVIDEO = 6,
        DRM_MODE_SUBCONNECTOR_Component = 8,
        DRM_MODE_SUBCONNECTOR_SCART = 9,
    };

#define DRM_MODE_CONNECTOR_Unknown 0
#define DRM_MODE_CONNECTOR_VGA 1
#define DRM_MODE_CONNECTOR_DVII 2
#define DRM_MODE_CONNECTOR_DVID 3
#define DRM_MODE_CONNECTOR_DVIA 4
#define DRM_MODE_CONNECTOR_Composite 5
#define DRM_MODE_CONNECTOR_SVIDEO 6
#define DRM_MODE_CONNECTOR_LVDS 7
#define DRM_MODE_CONNECTOR_Component 8
#define DRM_MODE_CONNECTOR_9PinDIN 9
#define DRM_MODE_CONNECTOR_DisplayPort 10
#define DRM_MODE_CONNECTOR_HDMIA 11
#define DRM_MODE_CONNECTOR_HDMIB 12
#define DRM_MODE_CONNECTOR_TV 13
#define DRM_MODE_CONNECTOR_eDP 14
#define DRM_MODE_CONNECTOR_VIRTUAL 15
#define DRM_MODE_CONNECTOR_DSI 16
#define DRM_MODE_CONNECTOR_DPI 17
#define DRM_MODE_CONNECTOR_WRITEBACK 18

    struct drm_mode_get_connector
    {

        __u64 encoders_ptr;
        __u64 modes_ptr;
        __u64 props_ptr;
        __u64 prop_values_ptr;

        __u32 count_modes;
        __u32 count_props;
        __u32 count_encoders;

        __u32 encoder_id;   /**< Current Encoder */
        __u32 connector_id; /**< Id */
        __u32 connector_type;
        __u32 connector_type_id;

        __u32 connection;
        __u32 mm_width;  /**< width in millimeters */
        __u32 mm_height; /**< height in millimeters */
        __u32 subpixel;

        __u32 pad;
    };

#define DRM_MODE_PROP_PENDING (1 << 0) /* deprecated, do not use */
#define DRM_MODE_PROP_RANGE (1 << 1)
#define DRM_MODE_PROP_IMMUTABLE (1 << 2)
#define DRM_MODE_PROP_ENUM (1 << 3) /* enumerated type with text strings */
#define DRM_MODE_PROP_BLOB (1 << 4)
#define DRM_MODE_PROP_BITMASK (1 << 5) /* bitmask of enumerated types */

/* non-extended types: legacy bitmask, one bit per type: */
#define DRM_MODE_PROP_LEGACY_TYPE ( \
    DRM_MODE_PROP_RANGE |           \
    DRM_MODE_PROP_ENUM |            \
    DRM_MODE_PROP_BLOB |            \
    DRM_MODE_PROP_BITMASK)

/* extended-types: rather than continue to consume a bit per type,
 * grab a chunk of the bits to use as integer type id.
 */
#define DRM_MODE_PROP_EXTENDED_TYPE 0x0000ffc0
#define DRM_MODE_PROP_TYPE(n) ((n) << 6)
#define DRM_MODE_PROP_OBJECT DRM_MODE_PROP_TYPE(1)
#define DRM_MODE_PROP_SIGNED_RANGE DRM_MODE_PROP_TYPE(2)

/* the PROP_ATOMIC flag is used to hide properties from userspace that
 * is not aware of atomic properties.  This is mostly to work around
 * older userspace (DDX drivers) that read/write each prop they find,
 * without being aware that this could be triggering a lengthy modeset.
 */
#define DRM_MODE_PROP_ATOMIC 0x80000000

    struct drm_mode_property_enum
    {
        __u64 value;
        char name[DRM_PROP_NAME_LEN];
    };

    struct drm_mode_get_property
    {
        __u64 values_ptr;    /* values and blob lengths */
        __u64 enum_blob_ptr; /* enum and blob id ptrs */

        __u32 prop_id;
        __u32 flags;
        char name[DRM_PROP_NAME_LEN];

        __u32 count_values;
        /* This is only used to count enum values, not blobs. The _blobs is
         * simply because of a historical reason, i.e. backwards compat. */
        __u32 count_enum_blobs;
    };

    struct drm_mode_connector_set_property
    {
        __u64 value;
        __u32 prop_id;
        __u32 connector_id;
    };

#define DRM_MODE_OBJECT_CRTC 0xcccccccc
#define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
#define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
#define DRM_MODE_OBJECT_MODE 0xdededede
#define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
#define DRM_MODE_OBJECT_FB 0xfbfbfbfb
#define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
#define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
#define DRM_MODE_OBJECT_ANY 0

    struct drm_mode_obj_get_properties
    {
        __u64 props_ptr;
        __u64 prop_values_ptr;
        __u32 count_props;
        __u32 obj_id;
        __u32 obj_type;
    };

    struct drm_mode_obj_set_property
    {
        __u64 value;
        __u32 prop_id;
        __u32 obj_id;
        __u32 obj_type;
    };

    struct drm_mode_get_blob
    {
        __u32 blob_id;
        __u32 length;
        __u64 data;
    };

    struct drm_mode_fb_cmd
    {
        __u32 fb_id;
        __u32 width;
        __u32 height;
        __u32 pitch;
        __u32 bpp;
        __u32 depth;
        /* driver specific handle */
        __u32 handle;
    };

#define DRM_MODE_FB_INTERLACED (1 << 0) /* for interlaced framebuffers */
#define DRM_MODE_FB_MODIFIERS (1 << 1)  /* enables ->modifer[] */

    struct drm_mode_fb_cmd2
    {
        __u32 fb_id;
        __u32 width;
        __u32 height;
        __u32 pixel_format; /* fourcc code from drm_fourcc.h */
        __u32 flags;        /* see above flags */

        /*
         * In case of planar formats, this ioctl allows up to 4
         * buffer objects with offsets and pitches per plane.
         * The pitch and offset order is dictated by the fourcc,
         * e.g. NV12 (http://fourcc.org/yuv.php#NV12) is described as:
         *
         *   YUV 4:2:0 image with a plane of 8 bit Y samples
         *   followed by an interleaved U/V plane containing
         *   8 bit 2x2 subsampled colour difference samples.
         *
         * So it would consist of Y as offsets[0] and UV as
         * offsets[1].  Note that offsets[0] will generally
         * be 0 (but this is not required).
         *
         * To accommodate tiled, compressed, etc formats, a
         * modifier can be specified.  The default value of zero
         * indicates "native" format as specified by the fourcc.
         * Vendor specific modifier token.  Note that even though
         * it looks like we have a modifier per-plane, we in fact
         * do not. The modifier for each plane must be identical.
         * Thus all combinations of different data layouts for
         * multi plane formats must be enumerated as separate
         * modifiers.
         */
        __u32 handles[4];
        __u32 pitches[4];  /* pitch for each plane */
        __u32 offsets[4];  /* offset of each plane */
        __u64 modifier[4]; /* ie, tiling, compress */
    };

#define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
#define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
#define DRM_MODE_FB_DIRTY_FLAGS 0x03

#define DRM_MODE_FB_DIRTY_MAX_CLIPS 256

    /*
     * Mark a region of a framebuffer as dirty.
     *
     * Some hardware does not automatically update display contents
     * as a hardware or software draw to a framebuffer. This ioctl
     * allows userspace to tell the kernel and the hardware what
     * regions of the framebuffer have changed.
     *
     * The kernel or hardware is free to update more then just the
     * region specified by the clip rects. The kernel or hardware
     * may also delay and/or coalesce several calls to dirty into a
     * single update.
     *
     * Userspace may annotate the updates, the annotates are a
     * promise made by the caller that the change is either a copy
     * of pixels or a fill of a single color in the region specified.
     *
     * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
     * the number of updated regions are half of num_clips given,
     * where the clip rects are paired in src and dst. The width and
     * height of each one of the pairs must match.
     *
     * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
     * promises that the region specified of the clip rects is filled
     * completely with a single color as given in the color argument.
     */

    struct drm_mode_fb_dirty_cmd
    {
        __u32 fb_id;
        __u32 flags;
        __u32 color;
        __u32 num_clips;
        __u64 clips_ptr;
    };

    struct drm_mode_mode_cmd
    {
        __u32 connector_id;
        struct drm_mode_modeinfo mode;
    };

#define DRM_MODE_CURSOR_BO 0x01
#define DRM_MODE_CURSOR_MOVE 0x02
#define DRM_MODE_CURSOR_FLAGS 0x03

    /*
     * depending on the value in flags different members are used.
     *
     * CURSOR_BO uses
     *    crtc_id
     *    width
     *    height
     *    handle - if 0 turns the cursor off
     *
     * CURSOR_MOVE uses
     *    crtc_id
     *    x
     *    y
     */
    struct drm_mode_cursor
    {
        __u32 flags;
        __u32 crtc_id;
        __s32 x;
        __s32 y;
        __u32 width;
        __u32 height;
        /* driver specific handle */
        __u32 handle;
    };

    struct drm_mode_cursor2
    {
        __u32 flags;
        __u32 crtc_id;
        __s32 x;
        __s32 y;
        __u32 width;
        __u32 height;
        /* driver specific handle */
        __u32 handle;
        __s32 hot_x;
        __s32 hot_y;
    };

    struct drm_mode_crtc_lut
    {
        __u32 crtc_id;
        __u32 gamma_size;

        /* pointers to arrays */
        __u64 red;
        __u64 green;
        __u64 blue;
    };

    struct drm_color_ctm
    {
        /*
         * Conversion matrix in S31.32 sign-magnitude
         * (not two's complement!) format.
         */
        __u64 matrix[9];
    };

    struct drm_color_lut
    {
        /*
         * Values are mapped linearly to 0.0 - 1.0 range, with 0x0 == 0.0 and
         * 0xffff == 1.0.
         */
        __u16 red;
        __u16 green;
        __u16 blue;
        __u16 reserved;
    };

#define DRM_MODE_PAGE_FLIP_EVENT 0x01
#define DRM_MODE_PAGE_FLIP_ASYNC 0x02
#define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4
#define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8
#define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \
                                   DRM_MODE_PAGE_FLIP_TARGET_RELATIVE)
#define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \
                                  DRM_MODE_PAGE_FLIP_ASYNC | \
                                  DRM_MODE_PAGE_FLIP_TARGET)

    /*
     * Request a page flip on the specified crtc.
     *
     * This ioctl will ask KMS to schedule a page flip for the specified
     * crtc.  Once any pending rendering targeting the specified fb (as of
     * ioctl time) has completed, the crtc will be reprogrammed to display
     * that fb after the next vertical refresh.  The ioctl returns
     * immediately, but subsequent rendering to the current fb will block
     * in the execbuffer ioctl until the page flip happens.  If a page
     * flip is already pending as the ioctl is called, EBUSY will be
     * returned.
     *
     * Flag DRM_MODE_PAGE_FLIP_EVENT requests that drm sends back a vblank
     * event (see drm.h: struct drm_event_vblank) when the page flip is
     * done.  The user_data field passed in with this ioctl will be
     * returned as the user_data field in the vblank event struct.
     *
     * Flag DRM_MODE_PAGE_FLIP_ASYNC requests that the flip happen
     * 'as soon as possible', meaning that it not delay waiting for vblank.
     * This may cause tearing on the screen.
     *
     * The reserved field must be zero.
     */

    struct drm_mode_crtc_page_flip
    {
        __u32 crtc_id;
        __u32 fb_id;
        __u32 flags;
        __u32 reserved;
        __u64 user_data;
    };

    /*
     * Request a page flip on the specified crtc.
     *
     * Same as struct drm_mode_crtc_page_flip, but supports new flags and
     * re-purposes the reserved field:
     *
     * The sequence field must be zero unless either of the
     * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is specified. When
     * the ABSOLUTE flag is specified, the sequence field denotes the absolute
     * vblank sequence when the flip should take effect. When the RELATIVE
     * flag is specified, the sequence field denotes the relative (to the
     * current one when the ioctl is called) vblank sequence when the flip
     * should take effect. NOTE: DRM_IOCTL_WAIT_VBLANK must still be used to
     * make sure the vblank sequence before the target one has passed before
     * calling this ioctl. The purpose of the
     * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is merely to clarify
     * the target for when code dealing with a page flip runs during a
     * vertical blank period.
     */

    struct drm_mode_crtc_page_flip_target
    {
        __u32 crtc_id;
        __u32 fb_id;
        __u32 flags;
        __u32 sequence;
        __u64 user_data;
    };

    /* create a dumb scanout buffer */
    struct drm_mode_create_dumb
    {
        __u32 height;
        __u32 width;
        __u32 bpp;
        __u32 flags;
        /* handle, pitch, size will be returned */
        __u32 handle;
        __u32 pitch;
        __u64 size;
    };

    /* set up for mmap of a dumb scanout buffer */
    struct drm_mode_map_dumb
    {
        /** Handle for the object being mapped. */
        __u32 handle;
        __u32 pad;
        /**
         * Fake offset to use for subsequent mmap call
         *
         * This is a fixed-size type for 32/64 compatibility.
         */
        __u64 offset;
    };

    struct drm_mode_destroy_dumb
    {
        __u32 handle;
    };

/* page-flip flags are valid, plus: */
#define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
#define DRM_MODE_ATOMIC_NONBLOCK 0x0200
#define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400

#define DRM_MODE_ATOMIC_FLAGS ( \
    DRM_MODE_PAGE_FLIP_EVENT |  \
    DRM_MODE_PAGE_FLIP_ASYNC |  \
    DRM_MODE_ATOMIC_TEST_ONLY | \
    DRM_MODE_ATOMIC_NONBLOCK |  \
    DRM_MODE_ATOMIC_ALLOW_MODESET)

    struct drm_mode_atomic
    {
        __u32 flags;
        __u32 count_objs;
        __u64 objs_ptr;
        __u64 count_props_ptr;
        __u64 props_ptr;
        __u64 prop_values_ptr;
        __u64 reserved;
        __u64 user_data;
    };

    struct drm_format_modifier_blob
    {
#define FORMAT_BLOB_CURRENT 1
        /* Version of this blob format */
        __u32 version;

        /* Flags */
        __u32 flags;

        /* Number of fourcc formats supported */
        __u32 count_formats;

        /* Where in this blob the formats exist (in bytes) */
        __u32 formats_offset;

        /* Number of drm_format_modifiers */
        __u32 count_modifiers;

        /* Where in this blob the modifiers exist (in bytes) */
        __u32 modifiers_offset;

        /* __u32 formats[] */
        /* struct drm_format_modifier modifiers[] */
    };

    struct drm_format_modifier
    {
        /* Bitmask of formats in get_plane format list this info applies to. The
         * offset allows a sliding window of which 64 formats (bits).
         *
         * Some examples:
         * In today's world with < 65 formats, and formats 0, and 2 are
         * supported
         * 0x0000000000000005
         *		  ^-offset = 0, formats = 5
         *
         * If the number formats grew to 128, and formats 98-102 are
         * supported with the modifier:
         *
         * 0x0000007c00000000 0000000000000000
         *		  ^
         *		  |__offset = 64, formats = 0x7c00000000
         *
         */
        __u64 formats;
        __u32 offset;
        __u32 pad;

        /* The modifier that applies to the >get_plane format list bitmask. */
        __u64 modifier;
    };

    /**
     * Create a new 'blob' data property, copying length bytes from data pointer,
     * and returning new blob ID.
     */
    struct drm_mode_create_blob
    {
        /** Pointer to data to copy. */
        __u64 data;
        /** Length of data to copy. */
        __u32 length;
        /** Return: new property ID. */
        __u32 blob_id;
    };

    /**
     * Destroy a user-created blob property.
     */
    struct drm_mode_destroy_blob
    {
        __u32 blob_id;
    };

    /**
     * Lease mode resources, creating another drm_master.
     */
    struct drm_mode_create_lease
    {
        /** Pointer to array of object ids (__u32) */
        __u64 object_ids;
        /** Number of object ids */
        __u32 object_count;
        /** flags for new FD (O_CLOEXEC, etc) */
        __u32 flags;

        /** Return: unique identifier for lessee. */
        __u32 lessee_id;
        /** Return: file descriptor to new drm_master file */
        __u32 fd;
    };

    /**
     * List lesses from a drm_master
     */
    struct drm_mode_list_lessees
    {
        /** Number of lessees.
         * On input, provides length of the array.
         * On output, provides total number. No
         * more than the input number will be written
         * back, so two calls can be used to get
         * the size and then the data.
         */
        __u32 count_lessees;
        __u32 pad;

        /** Pointer to lessees.
         * pointer to __u64 array of lessee ids
         */
        __u64 lessees_ptr;
    };

    /**
     * Get leased objects
     */
    struct drm_mode_get_lease
    {
        /** Number of leased objects.
         * On input, provides length of the array.
         * On output, provides total number. No
         * more than the input number will be written
         * back, so two calls can be used to get
         * the size and then the data.
         */
        __u32 count_objects;
        __u32 pad;

        /** Pointer to objects.
         * pointer to __u32 array of object ids
         */
        __u64 objects_ptr;
    };

    /**
     * Revoke lease
     */
    struct drm_mode_revoke_lease
    {
        /** Unique ID of lessee
         */
        __u32 lessee_id;
    };

    /**
     * struct drm_mode_rect - Two dimensional rectangle.
     * @x1: Horizontal starting coordinate (inclusive).
     * @y1: Vertical starting coordinate (inclusive).
     * @x2: Horizontal ending coordinate (exclusive).
     * @y2: Vertical ending coordinate (exclusive).
     *
     * With drm subsystem using struct drm_rect to manage rectangular area this
     * export it to user-space.
     *
     * Currently used by drm_mode_atomic blob property FB_DAMAGE_CLIPS.
     */
    struct drm_mode_rect
    {
        __s32 x1;
        __s32 y1;
        __s32 x2;
        __s32 y2;
    };

#if defined(__cplusplus)
}
#endif

#endif
